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scheduler.lua
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scheduler.lua
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local type = type
local error = error
local pairs = pairs
local rawget = rawget
local tonumber = tonumber
local getmetatable = getmetatable
local setmetatable = setmetatable
local debug = debug
local debug_getinfo = debug.getinfo
local table_pack = table.pack
local table_unpack = table.unpack
local table_insert = table.insert
local coroutine_create = coroutine.create
local coroutine_yield = coroutine.yield
local coroutine_resume = coroutine.resume
local coroutine_status = coroutine.status
local coroutine_running = coroutine.running
local coroutine_close = coroutine.close or (function(c) end) -- 5.3 compatibility
--[[ Custom extensions --]]
local msgpack = msgpack
local msgpack_pack = msgpack.pack
local msgpack_unpack = msgpack.unpack
local msgpack_pack_args = msgpack.pack_args
local Citizen = Citizen
local Citizen_SubmitBoundaryStart = Citizen.SubmitBoundaryStart
local Citizen_InvokeFunctionReference = Citizen.InvokeFunctionReference
local GetGameTimer = GetGameTimer
local ProfilerEnterScope = ProfilerEnterScope
local ProfilerExitScope = ProfilerExitScope
local hadThread = false
local curTime = 0
local hadProfiler = false
local isDuplicityVersion = IsDuplicityVersion()
local function _ProfilerEnterScope(name)
if hadProfiler then
ProfilerEnterScope(name)
end
end
local function _ProfilerExitScope()
if hadProfiler then
ProfilerExitScope()
end
end
-- setup msgpack compat
msgpack.set_string('string_compat')
msgpack.set_integer('unsigned')
msgpack.set_array('without_hole')
msgpack.setoption('empty_table_as_array', true)
-- setup json compat
json.version = json._VERSION -- Version compatibility
json.setoption("empty_table_as_array", true)
json.setoption('with_hole', true)
-- temp
local _in = Citizen.InvokeNative
local function FormatStackTrace()
return _in(`FORMAT_STACK_TRACE` & 0xFFFFFFFF, nil, 0, Citizen.ResultAsString())
end
local boundaryIdx = 1
local function dummyUseBoundary(idx)
return nil
end
local function getBoundaryFunc(bfn, bid)
return function(fn, ...)
local boundary = bid
if not boundary then
boundary = boundaryIdx + 1
boundaryIdx = boundary
end
bfn(boundary, coroutine_running())
local wrap = function(...)
dummyUseBoundary(boundary)
local v = table_pack(fn(...))
return table_unpack(v)
end
local v = table_pack(wrap(...))
bfn(boundary, nil)
return table_unpack(v)
end
end
local runWithBoundaryStart = getBoundaryFunc(Citizen.SubmitBoundaryStart)
local runWithBoundaryEnd = getBoundaryFunc(Citizen.SubmitBoundaryEnd)
local AwaitSentinel = Citizen.AwaitSentinel()
Citizen.AwaitSentinel = nil
function Citizen.Await(promise)
local coro = coroutine_running()
assert(coro, "Current execution context is not in the scheduler, you should use CreateThread / SetTimeout or Event system (AddEventHandler) to be able to Await")
if promise.state == 0 then
local reattach = coroutine_yield(AwaitSentinel)
promise:next(reattach, reattach)
coroutine_yield()
end
if promise.state == 2 then
error(promise.value, 2)
end
return promise.value
end
Citizen.SetBoundaryRoutine(function(f)
boundaryIdx = boundaryIdx + 1
local bid = boundaryIdx
return bid, function()
return runWithBoundaryStart(f, bid)
end
end)
-- root-level alias (to prevent people from calling the game's function accidentally)
Wait = Citizen.Wait
CreateThread = Citizen.CreateThread
SetTimeout = Citizen.SetTimeout
--[[
Event handling
]]
local eventHandlers = {}
local deserializingNetEvent = false
Citizen.SetEventRoutine(function(eventName, eventPayload, eventSource)
-- set the event source
local lastSource = _G.source
_G.source = eventSource
-- try finding an event handler for the event
local eventHandlerEntry = eventHandlers[eventName]
-- deserialize the event structure (so that we end up adding references to delete later on)
local data = msgpack_unpack(eventPayload)
if eventHandlerEntry and eventHandlerEntry.handlers then
-- if this is a net event and we don't allow this event to be triggered from the network, return
if eventSource:sub(1, 3) == 'net' then
if not eventHandlerEntry.safeForNet then
Citizen.Trace('event ' .. eventName .. " was not safe for net\n")
_G.source = lastSource
return
end
deserializingNetEvent = { source = eventSource }
_G.source = tonumber(eventSource:sub(5))
elseif isDuplicityVersion and eventSource:sub(1, 12) == 'internal-net' then
deserializingNetEvent = { source = eventSource:sub(10) }
_G.source = tonumber(eventSource:sub(14))
end
-- return an empty table if the data is nil
if not data then
data = {}
end
-- reset serialization
deserializingNetEvent = nil
-- if this is a table...
if type(data) == 'table' then
-- loop through all the event handlers
for k, handler in pairs(eventHandlerEntry.handlers) do
local handlerFn = handler
local handlerMT = getmetatable(handlerFn)
if handlerMT and handlerMT.__call then
handlerFn = handlerMT.__call
end
if type(handlerFn) == 'function' then
local di = debug_getinfo(handlerFn)
Citizen.CreateThreadNow(function()
handler(table_unpack(data))
end, ('event %s [%s[%d..%d]]'):format(eventName, di.short_src, di.linedefined, di.lastlinedefined))
end
end
end
end
_G.source = lastSource
end)
local stackTraceBoundaryIdx
Citizen.SetStackTraceRoutine(function(bs, ts, be, te)
if not ts then
ts = runningThread
end
local t
local n = 0
local frames = {}
local skip = false
if bs then
skip = true
end
repeat
if ts then
t = debug_getinfo(ts, n, 'nlfS')
else
t = debug_getinfo(n + 1, 'nlfS')
end
if t then
if t.name == 'wrap' and t.source == '@citizen:/scripting/lua/scheduler.lua' then
if not stackTraceBoundaryIdx then
local b, v
local u = 1
repeat
b, v = debug.getupvalue(t.func, u)
if b == 'boundary' then
break
end
u = u + 1
until not b
stackTraceBoundaryIdx = u
end
local _, boundary = debug.getupvalue(t.func, stackTraceBoundaryIdx)
if boundary == bs then
skip = false
end
if boundary == be then
break
end
end
if not skip then
if t.source and t.source:sub(1, 1) ~= '=' and t.source:sub(1, 10) ~= '@citizen:/' then
table_insert(frames, {
file = t.source:sub(2),
line = t.currentline,
name = t.name or '[global chunk]'
})
end
end
n = n + 1
end
until not t
return msgpack_pack(frames)
end)
local eventKey = 10
function AddEventHandler(eventName, eventRoutine)
local tableEntry = eventHandlers[eventName]
if not tableEntry then
tableEntry = { }
eventHandlers[eventName] = tableEntry
end
if not tableEntry.handlers then
tableEntry.handlers = { }
end
eventKey = eventKey + 1
tableEntry.handlers[eventKey] = eventRoutine
RegisterResourceAsEventHandler(eventName)
return {
key = eventKey,
name = eventName
}
end
function RemoveEventHandler(eventData)
if not eventData.key and not eventData.name then
error('Invalid event data passed to RemoveEventHandler()', 2)
end
-- remove the entry
eventHandlers[eventData.name].handlers[eventData.key] = nil
end
local ignoreNetEvent = {
['__cfx_internal:commandFallback'] = true,
}
function RegisterNetEvent(eventName, cb)
if not ignoreNetEvent[eventName] then
local tableEntry = eventHandlers[eventName]
if not tableEntry then
tableEntry = { }
eventHandlers[eventName] = tableEntry
end
tableEntry.safeForNet = true
end
if cb then
return AddEventHandler(eventName, cb)
end
end
function TriggerEvent(eventName, ...)
local payload = msgpack_pack_args(...)
return runWithBoundaryEnd(function()
return TriggerEventInternal(eventName, payload, payload:len())
end)
end
if isDuplicityVersion then
function TriggerClientEvent(eventName, playerId, ...)
local payload = msgpack_pack_args(...)
return TriggerClientEventInternal(eventName, playerId, payload, payload:len())
end
function TriggerLatentClientEvent(eventName, playerId, bps, ...)
local payload = msgpack_pack_args(...)
return TriggerLatentClientEventInternal(eventName, playerId, payload, payload:len(), tonumber(bps))
end
RegisterServerEvent = RegisterNetEvent
RconPrint = Citizen.Trace
GetPlayerEP = GetPlayerEndpoint
RconLog = function() end
function hash(string)
local hash = 76183
for i = 1, #string do
hash = ((hash << 5) + hash) + string.byte(string, i)
end
return hash
end
function GetPlayerIdentifiers(player)
local numIds = GetNumPlayerIdentifiers(player)
local t = {}
for i = 0, numIds - 1 do
if string.find(GetPlayerIdentifier(player, i), "ip:") then
local ip = GetPlayerIdentifier(player, i)
ip = string.gsub(ip, "ip:", "")
local hashedip = hash(ip)
table_insert(t, "ip:" .. hashedip)
else
table_insert(t, GetPlayerIdentifier(player, i))
end
end
return t
end
function GetPlayerTokens(player)
local numIds = GetNumPlayerTokens(player)
local t = {}
for i = 0, numIds - 1 do
table_insert(t, GetPlayerToken(player, i))
end
return t
end
function GetPlayers()
local num = GetNumPlayerIndices()
local t = {}
for i = 0, num - 1 do
table_insert(t, GetPlayerFromIndex(i))
end
return t
end
local httpDispatch = {}
AddEventHandler('__cfx_internal:httpResponse', function(token, status, body, headers, errorData)
if httpDispatch[token] then
local userCallback = httpDispatch[token]
httpDispatch[token] = nil
userCallback(status, body, headers, errorData)
end
end)
function PerformHttpRequest(url, cb, method, data, headers, options)
local followLocation = true
if options and options.followLocation ~= nil then
followLocation = options.followLocation
end
local t = {
url = url,
method = method or 'GET',
data = data or '',
headers = headers or {},
followLocation = followLocation
}
local id = PerformHttpRequestInternalEx(t)
if id ~= -1 then
httpDispatch[id] = cb
else
cb(0, nil, {}, 'Failure handling HTTP request')
end
end
else
function TriggerServerEvent(eventName, ...)
local payload = msgpack_pack_args(...)
return TriggerServerEventInternal(eventName, payload, payload:len())
end
function TriggerLatentServerEvent(eventName, bps, ...)
local payload = msgpack_pack_args(...)
return TriggerLatentServerEventInternal(eventName, payload, payload:len(), tonumber(bps))
end
end
local funcRefs = {}
local funcRefIdx = 0
local function MakeFunctionReference(func)
local thisIdx = funcRefIdx
funcRefs[thisIdx] = {
func = func,
refs = 0
}
funcRefIdx = funcRefIdx + 1
local refStr = Citizen.CanonicalizeRef(thisIdx)
return refStr
end
function Citizen.GetFunctionReference(func)
if type(func) == 'function' then
return MakeFunctionReference(func)
elseif type(func) == 'table' and rawget(func, '__cfx_functionReference') then
return MakeFunctionReference(function(...)
return func(...)
end)
end
return nil
end
local function doStackFormat(err)
local fst = FormatStackTrace()
-- already recovering from an error
if not fst then
return nil
end
return '^1SCRIPT ERROR: ' .. err .. "^7\n" .. fst
end
Citizen.SetCallRefRoutine(function(refId, argsSerialized)
local refPtr = funcRefs[refId]
if not refPtr then
Citizen.Trace('Invalid ref call attempt: ' .. refId .. "\n")
return msgpack_pack(nil)
end
local ref = refPtr.func
local err
local retvals
local cb = {}
local di = debug_getinfo(ref)
local waited = Citizen.CreateThreadNow(function()
local status, result, error = xpcall(function()
retvals = { ref(table_unpack(msgpack_unpack(argsSerialized))) }
end, doStackFormat)
if not status then
err = result or ''
end
if cb.cb then
cb.cb(retvals or false, err)
end
end, ('ref call [%s[%d..%d]]'):format(di.short_src, di.linedefined, di.lastlinedefined))
if not waited then
if err then
if err ~= '' then
Citizen.Trace(err)
end
return msgpack_pack(nil)
end
return msgpack_pack(retvals)
else
return msgpack_pack({{
__cfx_async_retval = function(rvcb)
cb.cb = rvcb
end
}})
end
end)
Citizen.SetDuplicateRefRoutine(function(refId)
local ref = funcRefs[refId]
if ref then
ref.refs = ref.refs + 1
return refId
end
return -1
end)
Citizen.SetDeleteRefRoutine(function(refId)
local ref = funcRefs[refId]
if ref then
ref.refs = ref.refs - 1
if ref.refs <= 0 then
funcRefs[refId] = nil
end
end
end)
-- RPC REQUEST HANDLER
local InvokeRpcEvent
if GetCurrentResourceName() == 'sessionmanager' then
local rpcEvName = ('__cfx_rpcReq')
RegisterNetEvent(rpcEvName)
AddEventHandler(rpcEvName, function(retEvent, retId, refId, args)
local source = source
local eventTriggerFn = TriggerServerEvent
if isDuplicityVersion then
eventTriggerFn = function(name, ...)
TriggerClientEvent(name, source, ...)
end
end
local returnEvent = function(args, err)
eventTriggerFn(retEvent, retId, args, err)
end
local function makeArgRefs(o)
if type(o) == 'table' then
for k, v in pairs(o) do
if type(v) == 'table' and rawget(v, '__cfx_functionReference') then
o[k] = function(...)
return InvokeRpcEvent(source, rawget(v, '__cfx_functionReference'), {...})
end
end
makeArgRefs(v)
end
end
end
makeArgRefs(args)
runWithBoundaryEnd(function()
local payload = Citizen_InvokeFunctionReference(refId, msgpack_pack(args))
if #payload == 0 then
returnEvent(false, 'err')
return
end
local rvs = msgpack_unpack(payload)
if type(rvs[1]) == 'table' and rvs[1].__cfx_async_retval then
rvs[1].__cfx_async_retval(returnEvent)
else
returnEvent(rvs)
end
end)
end)
end
local rpcId = 0
local rpcPromises = {}
local playerPromises = {}
-- RPC REPLY HANDLER
local repName = ('__cfx_rpcRep:%s'):format(GetCurrentResourceName())
RegisterNetEvent(repName)
AddEventHandler(repName, function(retId, args, err)
local promise = rpcPromises[retId]
rpcPromises[retId] = nil
-- remove any player promise for us
for k, v in pairs(playerPromises) do
v[retId] = nil
end
if promise then
if args then
promise:resolve(args[1])
elseif err then
promise:reject(err)
end
end
end)
if isDuplicityVersion then
AddEventHandler('playerDropped', function(reason)
local source = source
if playerPromises[source] then
for k, v in pairs(playerPromises[source]) do
local p = rpcPromises[k]
if p then
p:reject('Player dropped: ' .. reason)
end
end
end
playerPromises[source] = nil
end)
end
local EXT_FUNCREF = 10
local EXT_LOCALFUNCREF = 11
msgpack.extend_clear(EXT_FUNCREF, EXT_LOCALFUNCREF)
-- RPC INVOCATION
InvokeRpcEvent = function(source, ref, args)
if not coroutine_running() then
error('RPC delegates can only be invoked from a thread.', 2)
end
local src = source
local eventTriggerFn = TriggerServerEvent
if isDuplicityVersion then
eventTriggerFn = function(name, ...)
TriggerClientEvent(name, src, ...)
end
end
local p = promise.new()
local asyncId = rpcId
rpcId = rpcId + 1
local refId = ('%d:%d'):format(GetInstanceId(), asyncId)
eventTriggerFn('__cfx_rpcReq', repName, refId, ref, args)
-- add rpc promise
rpcPromises[refId] = p
-- add a player promise
if not playerPromises[src] then
playerPromises[src] = {}
end
playerPromises[src][refId] = true
return Citizen.Await(p)
end
local funcref_mt = nil
funcref_mt = msgpack.extend({
__gc = function(t)
DeleteFunctionReference(rawget(t, '__cfx_functionReference'))
end,
__index = function(t, k)
error('Cannot index a funcref', 2)
end,
__newindex = function(t, k, v)
error('Cannot set indexes on a funcref', 2)
end,
__call = function(t, ...)
local netSource = rawget(t, '__cfx_functionSource')
local ref = rawget(t, '__cfx_functionReference')
if not netSource then
local args = msgpack_pack_args(...)
-- as Lua doesn't allow directly getting lengths from a data buffer, and _s will zero-terminate, we have a wrapper in the game itself
local rv = runWithBoundaryEnd(function()
return Citizen_InvokeFunctionReference(ref, args)
end)
local rvs = msgpack_unpack(rv)
-- handle async retvals from refs
if rvs and type(rvs[1]) == 'table' and rawget(rvs[1], '__cfx_async_retval') and coroutine_running() then
local p = promise.new()
rvs[1].__cfx_async_retval(function(r, e)
if r then
p:resolve(r)
elseif e then
p:reject(e)
end
end)
return table_unpack(Citizen.Await(p))
end
if not rvs then
error()
end
return table_unpack(rvs)
else
return InvokeRpcEvent(tonumber(netSource.source:sub(5)), ref, {...})
end
end,
__ext = EXT_FUNCREF,
__pack = function(self, tag)
local refstr = Citizen.GetFunctionReference(self)
if refstr then
return refstr
else
error(("Unknown funcref type: %d %s"):format(tag, type(self)), 2)
end
end,
__unpack = function(data, tag)
local ref = data
-- add a reference
DuplicateFunctionReference(ref)
local tbl = {
__cfx_functionReference = ref,
__cfx_functionSource = deserializingNetEvent
}
if tag == EXT_LOCALFUNCREF then
tbl.__cfx_functionSource = nil
end
tbl = setmetatable(tbl, funcref_mt)
return tbl
end,
})
--[[ Also initialize unpackers for local function references --]]
msgpack.extend({
__ext = EXT_LOCALFUNCREF,
__pack = funcref_mt.__pack,
__unpack = funcref_mt.__unpack,
})
msgpack.settype("function", EXT_FUNCREF)
-- exports compatibility
local function getExportEventName(resource, name)
return string.format('__cfx_export_%s_%s', resource, name)
end
-- callback cache to avoid extra call to serialization / deserialization process at each time getting an export
local exportsCallbackCache = {}
local exportKey = (isDuplicityVersion and 'server_export' or 'export')
do
local resource = GetCurrentResourceName()
local numMetaData = GetNumResourceMetadata(resource, exportKey) or 0
for i = 0, numMetaData-1 do
local exportName = GetResourceMetadata(resource, exportKey, i)
AddEventHandler(getExportEventName(resource, exportName), function(setCB)
-- get the entry from *our* global table and invoke the set callback
if _G[exportName] then
setCB(_G[exportName])
end
end)
end
end
-- Remove cache when resource stop to avoid calling unexisting exports
local function lazyEventHandler() -- lazy initializer so we don't add an event we don't need
AddEventHandler(('on%sResourceStop'):format(isDuplicityVersion and 'Server' or 'Client'), function(resource)
exportsCallbackCache[resource] = {}
end)
lazyEventHandler = function() end
end
-- Helper for newlines in nested error message
local function prefixNewlines(str, prefix)
str = tostring(str)
local out = ''
for bit in str:gmatch('[^\r\n]*\r?\n') do
out = out .. prefix .. bit
end
if #out == 0 or out:sub(#out) ~= '\n' then
out = out .. '\n'
end
return out
end
-- Handle an export with multiple return values.
local function exportProcessResult(resource, exportName, status, ...)
if not status then
local result = tostring(select(1, ...))
error(('\n^5 An error occurred while calling export `%s` in resource `%s`:\n%s^5 ---'):format(exportName, resource, prefixNewlines(result, ' ')), 2)
end
return ...
end
-- invocation bit
exports = {}
setmetatable(exports, {
__index = function(t, k)
local resource = k
return setmetatable({}, {
__index = function(t, k)
lazyEventHandler()
if not exportsCallbackCache[resource] then
exportsCallbackCache[resource] = {}
end
if not exportsCallbackCache[resource][k] then
TriggerEvent(getExportEventName(resource, k), function(exportData)
exportsCallbackCache[resource][k] = exportData
end)
if not exportsCallbackCache[resource][k] then
error('No such export ' .. k .. ' in resource ' .. resource, 2)
end
end
return function(self, ...) -- TAILCALL
return exportProcessResult(resource, k, pcall(exportsCallbackCache[resource][k], ...))
end
end,
__newindex = function(t, k, v)
error('cannot set values on an export resource', 2)
end
})
end,
__newindex = function(t, k, v)
error('cannot set values on exports', 2)
end,
__call = function(t, exportName, func)
AddEventHandler(getExportEventName(GetCurrentResourceName(), exportName), function(setCB)
setCB(func)
end)
end
})
-- NUI callbacks
if not isDuplicityVersion then
function RegisterNUICallback(type, callback)
RegisterNuiCallbackType(type)
AddEventHandler('__cfx_nui:' .. type, function(body, resultCallback)
--[[
-- Lua 5.4: Create a to-be-closed variable to monitor the NUI callback handle.
local hasCallback = false
local _ <close> = defer(function()
if not hasCallback then
local di = debug_getinfo(callback, 'S')
local name = ('function %s[%d..%d]'):format(di.short_src, di.linedefined, di.lastlinedefined)
Citizen.Trace(("No NUI callback captured: %s\n"):format(name))
end
end)
local status, err = pcall(function()
callback(body, function(...)
hasCallback = true
resultCallback(...)
end)
end)
--]]
local status, err = pcall(function()
callback(body, resultCallback)
end)
if err then
Citizen.Trace("error during NUI callback " .. type .. ": " .. tostring(err) .. "\n")
end
end)
end
local _sendNuiMessage = SendNuiMessage
function SendNUIMessage(message)
_sendNuiMessage(json.encode(message))
end
end
-- entity helpers
local EXT_ENTITY = 41
local EXT_PLAYER = 42
msgpack.extend_clear(EXT_ENTITY, EXT_PLAYER)
local function NewStateBag(es)
return setmetatable({}, {
__index = function(_, s)
if s == 'set' then
return function(_, s, v, r)
local payload = msgpack_pack(v)
SetStateBagValue(es, s, payload, payload:len(), r)
end
end
return GetStateBagValue(es, s)
end,
__newindex = function(_, s, v)
local payload = msgpack_pack(v)
SetStateBagValue(es, s, payload, payload:len(), isDuplicityVersion)
end
})
end
GlobalState = NewStateBag('global')
local function GetEntityStateBagId(entityGuid)
if isDuplicityVersion or NetworkGetEntityIsNetworked(entityGuid) then
return ('entity:%d'):format(NetworkGetNetworkIdFromEntity(entityGuid))
else
EnsureEntityStateBag(entityGuid)
return ('localEntity:%d'):format(entityGuid)
end
end
local entityMT
entityMT = {
__index = function(t, s)
if s == 'state' then